>-----Original Message----- >From: Jinx [mailto:joecolquitt@CLEAR.NET.NZ] >Sent: Friday, May 14, 2004 9:15 AM >To: PICLIST@MITVMA.MIT.EDU >Subject: Re: [EE:] Cascading Regulators > > >> The pinout of the 7805 is IN-GND-OUT, when looking from its >> front, isn't it ? (at least that's what I've found on the datasheets > >Correct. Maybe you've a bad 7805 (possible) or capacitor (unlikely). >Do you have spares to substitute to find out ? > >You haven't mistakenly used a 7905 have you ? (just a long shot) Since this is a machine-made board, is this a tested design? Is there a short from Vcc to GND somewhere? Oh, and regarding that "Long Shot", I've made that mistake recently myself. I now keep my regulators sorted into separate parts bins to reduce the chances of doing that again. Lyle -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body